diff options
| -rw-r--r-- | src/mesa/main/renderbuffer.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/mesa/main/renderbuffer.c b/src/mesa/main/renderbuffer.c index d043237e53..0999ed5954 100644 --- a/src/mesa/main/renderbuffer.c +++ b/src/mesa/main/renderbuffer.c @@ -47,6 +47,8 @@ #include "fbobject.h" #include "renderbuffer.h" +#include "rbadaptors.h" + /* 32-bit color index format. Not a public format. */ #define COLOR_INDEX32 0x424243 @@ -2046,6 +2048,25 @@ _mesa_add_renderbuffer(struct gl_framebuffer *fb, assert(!rb->Name); } + /* If Mesa's compiled with deep color channels (16 or 32 bits / channel) + * and the device driver is expecting 8-bit values (GLubyte), we can + * use a "renderbuffer adaptor/wrapper" to do the necessary conversions. + */ + if (rb->_BaseFormat == GL_RGBA) { + if (CHAN_BITS == 16 && rb->DataType == GL_UNSIGNED_BYTE) { + GET_CURRENT_CONTEXT(ctx); + rb = _mesa_new_renderbuffer_16wrap8(ctx, rb); + } + else if (CHAN_BITS == 32 && rb->DataType == GL_UNSIGNED_BYTE) { + GET_CURRENT_CONTEXT(ctx); + rb = _mesa_new_renderbuffer_32wrap8(ctx, rb); + } + else if (CHAN_BITS == 32 && rb->DataType == GL_UNSIGNED_SHORT) { + GET_CURRENT_CONTEXT(ctx); + rb = _mesa_new_renderbuffer_32wrap16(ctx, rb); + } + } + fb->Attachment[bufferName].Type = GL_RENDERBUFFER_EXT; fb->Attachment[bufferName].Complete = GL_TRUE; fb->Attachment[bufferName].Renderbuffer = rb; |